Vehicle battery case

1 . A vehicle battery case comprising:

a case body in which a vehicle battery is contained; and

a side portion extending in a longitudinal direction of a vehicle and coupled to a side of the case body, thereby protecting a side of the vehicle battery,

wherein the side portion comprises:

a lower panel extending outwards from the case body and having a first protrusion formed to protrude upwards;

an upper panel disposed above the lower panel and extending outwards from the case body so as to form a closed section together with the lower panel;

a reinforcement panel disposed between the upper panel and the lower panel so as to extend outwards from the case body, thereby reinforcing rigidity of the side portion together with the lower panel and the upper panel; and

multiple pipe members penetrating the lower panel, the upper panel, and the reinforcement panel and connecting with a chassis, while being disposed to be spaced apart in forward or backward direction of the vehicle.

2 . The vehicle battery case of claim 1 , wherein the side portion further comprises a side panel disposed between the lower panel, and the upper panel, the side panel comprising multiple second protrusions bent so as to protrude to an outside of the vehicle.

3 . The vehicle battery case of claim 2 , wherein the lower panel and the upper panel extend from the multiple second protrusions of the side panel to the outside of the vehicle.

4 . The vehicle battery case of claim 3 , wherein a pair of second protrusions of the multiple second protrusions are formed to be spaced apart one above the other on the side panel, the lower panel extends from a lower second protrusion of the pair of second protrusions, and the upper panel extends from an upper second protrusion of the pair of second protrusions, the upper second protrusion is spaced above the lower second protrusion.

5 . The vehicle battery case of claim 2 , wherein an end portion of the upper panel extending from the side panel has a first bending portion that bends downwards, an end portion of the lower panel has a second bending portion that bends upwards, and the first and second bending portions are connected to form a closed section.

6 . The vehicle battery case of claim 5 , wherein the first bending portion is positioned more outwardly than the second bending portion.

7 . The vehicle battery case of claim 1 , wherein the reinforcement panel comprises a third protrusion protruding upwards, positioned to correspond to the first protrusion formed on the lower panel, and extending to an outside of the vehicle.

8 . The vehicle battery case of claim 7 , wherein a plurality of first protrusions is provided and disposed to be spaced apart in the forward or backward direction of the vehicle, and a plurality of third protrusions is formed and positioned to correspond to each of the plurality of first protrusions, respectively.

9 . The vehicle battery case of claim 7 , wherein the side portion further comprises a side panel disposed between the lower panel, and the upper panel, the side panel comprising multiple second protrusions bent so as to protrude to the outside of the vehicle, and the third protrusion is disposed between a pair of second protrusions of the multiple second protrusions.

10 . The vehicle battery case of claim 1 , wherein the first protrusion comprises a 1-1 protrusion and a 1-2 protrusion, the 1-1 protrusion extending from the case body to an end of the lower panel and the 1-2 protrusion protruding from the case body toward the pipe members, and a plurality of 1-1 protrusions and a plurality of 1-2 protrusions are provided and disposed alternately while being spaced apart from each other.

11 . The vehicle battery case of claim 10 , wherein the reinforcement panel comprises third protrusions protruding upwards while being positioned to correspond to the first protrusions formed on the lower panel, at least one third protrusion of the third protrusions positioned above at least one 1-1 protrusion of the plurality of 1-1 protrusions extends by a length of extension of the at least one 1-1 protrusion, and at least one third protrusion of the third protrusions positioned above at least one 1-2 protrusion of the plurality of 1-2 protrusions is formed on a vehicle outside end so as to bend downwards.

12 . A vehicle battery case comprising:

a case body in which a vehicle battery is contained; and

a side portion extending in a longitudinal direction of a vehicle and coupled to a side of the case body, thereby protecting a side of the vehicle battery,

wherein the side portion comprises:

a lower panel extending outwards from the case body and having a first protrusion formed to protrude upwards;

an upper panel disposed above the lower panel and extending outwards from the case body so as to form a closed section together with the lower panel;

a reinforcement panel disposed between the upper panel and the lower panel so as to extend outwards from the case body, thereby reinforcing rigidity of the side portion together with the lower panel and the upper panel, wherein the side portion further comprises a side panel disposed between the lower panel, and the upper panel, the side panel comprising multiple second protrusions bent so as to protrude to the outside of the vehicle, and wherein the lower panel and the upper panel extend from the multiple second protrusions of the side panel to the outside of the vehicle.